PostSider — Claude Code MCP server: setup
This MCP server lets an AI agent read PostSider channels, prepare social posts, and send drafts into human approval workflows.
claude mcp add --env POSTSIDER_API_KEY=<POSTSIDER_API_KEY> --env POSTSIDER_API_URL=<POSTSIDER_API_URL> --transport stdio mcp -- npx -y @postsider/mcpWhat PostSider does
PostSider gives an agent API access to a shared social media calendar. It can inspect connected channels, channel rules, queue plans, media, saved content items, post states, and analytics. The agent can also locate an open publishing slot.
Write actions cover draft creation, scheduling, media uploads, and approval requests. The connection uses an organization key in POSTSIDER_API_KEY; a separate PostSider deployment can be selected with POSTSIDER_API_URL. The server will not connect without the API key. Run it through npx -y @postsider/mcp or use a local stdio setup.
What it helps with
- inspect connected social channels
- find an open publishing slot
- turn campaign copy into a draft
- send a draft for human approval
Example prompts for the agent
- List my connected PostSider channels without changing anything.
- Find the next open slot for the selected channel and create a draft, but do not publish it.
- Review the PostSider calendar and send the chosen draft for approval.
How to install PostSider
Platform CLI
claude mcp add --env POSTSIDER_API_KEY=<POSTSIDER_API_KEY> --env POSTSIDER_API_URL=<POSTSIDER_API_URL> --transport stdio mcp -- npx -y @postsider/mcpReplace <…> with your own values
Platform CLI
codex mcp add mcp --env POSTSIDER_API_KEY=<POSTSIDER_API_KEY> --env POSTSIDER_API_URL=<POSTSIDER_API_URL> -- npx -y @postsider/mcpReplace <…> with your own values
Config file
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@postsider/mcp"
],
"env": {
"POSTSIDER_API_KEY": "<POSTSIDER_API_KEY>",
"POSTSIDER_API_URL": "<POSTSIDER_API_URL>"
}
}
}
}Replace <…> with your own values
Config file
{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@postsider/mcp"
],
"env": {
"POSTSIDER_API_KEY": "<POSTSIDER_API_KEY>",
"POSTSIDER_API_URL": "<POSTSIDER_API_URL>"
}
}
}
}Replace <…> with your own values
Platform CLI
gemini mcp add -e POSTSIDER_API_KEY=<POSTSIDER_API_KEY> -e POSTSIDER_API_URL=<POSTSIDER_API_URL> mcp npx -y @postsider/mcpReplace <…> with your own values
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about PostSider
How do I install PostSider in Claude Code?
Set an organization API key, then run claude mcp add postsider -e POSTSIDER_API_KEY=<POSTSIDER_API_KEY> -- npx -y @postsider/mcp.
What does PostSider do?
It connects an agent to a social media calendar so the agent can inspect channels and posts, create drafts, schedule content, and request approval.
What is required to connect PostSider?
You need an organization API key in POSTSIDER_API_KEY. For a separate PostSider deployment, also set POSTSIDER_API_URL.
